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A Potential Global Standard Stratotype‐Section and Point of the Moscovian Stage (Carboniferous)
Author(s) -
WANG Xiangdong,
QI Yuping,
LAMBERT Lance,
WANG Zhihao,
WANG Yue,
HU Keyi,
LIN Wei,
CHEN Bo
Publication year - 2011
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.2011.00405.x
Subject(s) - diachronous , conodont , global boundary stratotype section and point , stratotype , stage (stratigraphy) , paleontology , carboniferous , section (typography) , geology , taxon , lineage (genetic) , biostratigraphy , biology , structural basin , biochemistry , advertising , business , gene
Conodonts and fusulinids are the two most widely used biotic groups for subdividing and correlating Bashkirian and Moscovian strata. The definition of the base of the Global Moscovian Stage is undecided because there are many disagreements among existing boundary definition proposals, each of which has disadvantages. Declinognathodus donetzianus is easily recognized but somewhat limited in its paleogeographic distribution. Idiognathoides postsulcatus is slightly more widespread, but it is less easily identified and its occurrences may be diachronous from region to region. Diplognathodus ellesmerensis is easily recognized and even more widespread, but it is usually rare and its ancestry is not adequately known. The Naqing Section of South Guizhou, South China contains diverse conodont evolutionary lineages among different taxa, including Idiognathoides, Idiognathodus, Diplognathodus, Neognathodus, Gondolella and Mesogondolella . There are numerous transitional forms in almost every lineage of the Naqing section, which shows that the prospects for South China to play a critical role in determining the basal Moscovian Stage definition are good.